[GAMEPLAY] Master Yi is able to use Alpha Strike while being suppressed

I was playing Malzahar and used my ulti on Master Yi. From the replay, Master Yi was suppressed while he was still targetable and then he became untargetable as he used the Alpha Strike, during the process he was still marked as suppressed. However he was able to deal damage to the targets hit by the buggy Alpha Strike. The interaction would put Malzahar's ulti on CD but there was no damage dealt to Master Yi.

1. Master Yi used his ulti, and hit Malzahar with basic attack for few times
2. Use Malzahar's ulti on Master Yi, Master Yi is suppressed
3. In a short instance, Master Yi's use Alpha Strike
4. Master Yi became untargetable and is able to deal damage through Alpha Strike
5. The suppressed status may end early when the alpha strike ended.
6. Malzahar's ulti will put on cooldown but there was no damage dealt to Master Yi.

Above are the steps how it might happen but I didn't test it by myself.